Is an iconoclast someone who believes in using icons in worship or someone who opposes this practice?

Iconoclast is someone who: oppose this practice / oppose the use of icons.

Iconoclast believe that the icons that created by religious institutions is considered to be massive sins. They take the literal meaning of the tenth amendment, in which one of the rule said that it is forbidden  graven images or any likeness of anything, and icons are considered to be one of the graven images.

the correct answer is "c": the pillars proclaimed his regret at the bloodshed at the battle of kalinga and his conversion to buddhism.

the kalinga war is considered as one of the largest battles in the history of india. it was fought between the between the maurya empire, which ruled the lands of what is now known as india at the time, and the independent feudal kingdom of kalinga.

the army of maurya empire, led by its king ashoka, fought a prolonged war against kalinga. the war ended around 262 bce with the victory of the maurya empire. it is believed that ashoka, after having witnessed the loss of many lives during this war, felt deep responsibility and eventually converted into buddhism.